38755290 has 64 divisors (see below), whose sum is σ = 106997760. Its totient is φ = 8800320.

The previous prime is 38755289. The next prime is 38755303. The reversal of 38755290 is 9255783.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37075 + ... + 38105.

It is an arithmetic number, because the mean of its divisors is an integer number (1671840).

Almost surely, 2^38755290 is an apocalyptic number.

38755290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38755290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53498880).

38755290 is an abundant number, since it is smaller than the sum of its proper divisors (68242470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38755290 is a wasteful number, since it uses less digits than its factorization.

38755290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 38755290 is about 6225.3746875188. The cubic root of 38755290 is about 338.4103706953.

The spelling of 38755290 in words is "thirty-eight million, seven hundred fifty-five thousand, two hundred ninety".